An Improved Loudspeaker Model to Study Coupling in an Active Noise Control Setting

School of Engineering

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Research output: Contribution to conference - Without ISBN/ISSN › Conference paper › peer-review

Published

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An Improved Loudspeaker Model to Study Coupling in an Active Noise Control Setting. / Mohamady, Samira; Broemme, Niclas ; Montazeri, Allahyar.
2020. Paper presented at 148 Audio Engineering Society Convention, Vienna, Austria.

Research output: Contribution to conference - Without ISBN/ISSN › Conference paper › peer-review

Harvard

Mohamady, S, Broemme, N & Montazeri, A 2020, 'An Improved Loudspeaker Model to Study Coupling in an Active Noise Control Setting', Paper presented at 148 Audio Engineering Society Convention, Vienna, Austria, 25/05/20 - 28/05/20. <http://www.aes.org/e-lib/browse.cfm?elib=20848>

APA

Mohamady, S., Broemme, N., & Montazeri, A. (2020). An Improved Loudspeaker Model to Study Coupling in an Active Noise Control Setting. Paper presented at 148 Audio Engineering Society Convention, Vienna, Austria. http://www.aes.org/e-lib/browse.cfm?elib=20848

Vancouver

Mohamady S, Broemme N, Montazeri A. An Improved Loudspeaker Model to Study Coupling in an Active Noise Control Setting. 2020. Paper presented at 148 Audio Engineering Society Convention, Vienna, Austria.

Author

Mohamady, Samira ; Broemme, Niclas ; Montazeri, Allahyar. / An Improved Loudspeaker Model to Study Coupling in an Active Noise Control Setting. Paper presented at 148 Audio Engineering Society Convention, Vienna, Austria.

Bibtex

@conference{7d81ece476ee431782b375b3e7252f7a,

title = "An Improved Loudspeaker Model to Study Coupling in an Active Noise Control Setting",

abstract = "The previous numerical studies confirms that the effect of coupling amongst loudspeakers cannot be neglected in a multiple channel active noise control (ANC) system with several loudspeakers and microphones, placed in a confined space. Depending on the electromechanical properties of the loudspeakers, the coupling happens through the enclosure acoustic modes and this will change the radiation impedance of the loudspeakers. As a result, the performance of the ANC system influence due to the changes of the supplied voltage to the secondary loudspeakers. Nevertheless, the previous investigation rely on the simplified model of the loudspeakers as a solid piston in the ANC frequency range of interest. In this study, we aim to generalize these results by including a detailed finite element model (FEM) of the loudspeaker, in which the electromechanical impedance of a real loudspeaker is simulated numerically and validated experimentally afterwards. The validated loudspeaker is used for the numerical simulation of the ANC system inside an enclosure using the finite element method.",

author = "Samira Mohamady and Niclas Broemme and Allahyar Montazeri",

year = "2020",

language = "English",

note = "148 Audio Engineering Society Convention ; Conference date: 25-05-2020 Through 28-05-2020",

url = "http://www.aes.org/events/148/",

}

RIS

TY - CONF

T1 - An Improved Loudspeaker Model to Study Coupling in an Active Noise Control Setting

AU - Mohamady, Samira

AU - Broemme, Niclas

AU - Montazeri, Allahyar

PY - 2020

Y1 - 2020

N2 - The previous numerical studies confirms that the effect of coupling amongst loudspeakers cannot be neglected in a multiple channel active noise control (ANC) system with several loudspeakers and microphones, placed in a confined space. Depending on the electromechanical properties of the loudspeakers, the coupling happens through the enclosure acoustic modes and this will change the radiation impedance of the loudspeakers. As a result, the performance of the ANC system influence due to the changes of the supplied voltage to the secondary loudspeakers. Nevertheless, the previous investigation rely on the simplified model of the loudspeakers as a solid piston in the ANC frequency range of interest. In this study, we aim to generalize these results by including a detailed finite element model (FEM) of the loudspeaker, in which the electromechanical impedance of a real loudspeaker is simulated numerically and validated experimentally afterwards. The validated loudspeaker is used for the numerical simulation of the ANC system inside an enclosure using the finite element method.

AB - The previous numerical studies confirms that the effect of coupling amongst loudspeakers cannot be neglected in a multiple channel active noise control (ANC) system with several loudspeakers and microphones, placed in a confined space. Depending on the electromechanical properties of the loudspeakers, the coupling happens through the enclosure acoustic modes and this will change the radiation impedance of the loudspeakers. As a result, the performance of the ANC system influence due to the changes of the supplied voltage to the secondary loudspeakers. Nevertheless, the previous investigation rely on the simplified model of the loudspeakers as a solid piston in the ANC frequency range of interest. In this study, we aim to generalize these results by including a detailed finite element model (FEM) of the loudspeaker, in which the electromechanical impedance of a real loudspeaker is simulated numerically and validated experimentally afterwards. The validated loudspeaker is used for the numerical simulation of the ANC system inside an enclosure using the finite element method.

M3 - Conference paper

T2 - 148 Audio Engineering Society Convention

Y2 - 25 May 2020 through 28 May 2020

ER -

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